Cover and trap for catch-basins and the like.



PATENTED APR.17, 1906.

P.HANNAGAN. COVER AND TRAP FOR CATCH BASINS AND THE LIKE.

APPLIUATION FILED JULY 11. 1905.

2 SHEETS-SHEET 1.

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m. 818,164. PATENTED APR. '17, mos,

P. 'HANNAGAN.

COVER AND TRAP FUR'GATUH BASINS AND THE LIKE,"

- APPLICATION rum) JULY1L1905.

2 SHEETSSEEET 2.

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COVER AND TRAP FOR CATCH-BASINS AND THE LIKE.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed July 11, 1905. Serial No. 269,147.

To aZZ whom it may concern:

Be it known that I, PAUL I-IANNAGAN, a citizen of the United States,residing at Lawrence, in the county of Essex, State of Massachusetts,have invented a certain new and useful Improvement in Covers and Trapsfor Catch-Basins and the Like, of which the following is aspecification, reference being had therein to the accompanying drawings.

In the drawings, Figure 1 shows in plan a combined cover and trap forcatch-basins and the like containing an embodiment of the invention.Fig. 2 is a view in vertical section on the transverse plane indicatedby the dotted line 2 2 in Fig. 1. .Fig. 3 is a plan of a modified formof combined cover and trap for catch-basins. Fig. 4 is a view invertical section on line 4 4 of Fig. 3.

The cesspool or catch-basin cover of Figs. 1 and 2 consists of a mainportion or body and a removable top. The said main por tion or body isformed with a bottom plate 1, Fig. 2, having a central opening 1", aninner wall or shell 1 rising around the said central opening, an outerwall or shell 1 rising from the bottom plate 1 and separated from theinner wall or shell 1 by an intervening annular chamber 1 which isconcentric with the central opening 1", and a horizontal flange 1 whichprojects outward from the base of the casting. The said central openingserves for access and admission to the cesspool or catch-basin inconnection with Which the cover is employed. It permits of theintroduction of cleaning implements and the entrance and exit of workmenand of the removal of accumulations, &c. The removable top comprises aplate 2, a downwardly-extending flange 2 and radially-projectingvertical bars or lugs 2 2 2 &c. The plate 2 rests upon upwardlyextendingportions or projections 1 1 1 &c., forming part of the inner wall orshell 1', and the top is thereby supported when in place. The said plateis less in diameter than the outer wall or shell 1, so that when the topis in place a space exists between the peripheral edge of the plate andthe saidouter wall or shell. The vertical bars or lugs 2 2 2 &c., extenda short distance radially beyond the said peripheral edge, and by theircontact with the outer wall or shell they keep the said edge at auniform or substantially uniform distance from the said wall or shellall around. They also serve through such contact to keep the top fromtipping. The space aforesaid into the chamber 1 rises therein above thelower edge of the flange 2 of the removable top, submerging the lowerportion of the said flange until it reaches the openings 1 1 1 betweenthe upwardly-extending portions 1 1 1 of the wall 1 and flows inwardthrough the said openings into the central opening 1, thus discharginginto the cesspool or catchbasin. The water which is contained in theintervening chamber 1 cooperates with the downwardly-extending flange 2of the top to form a liquid seal for the cover. The paving which is laidaround the cover lies over and above the flange 1 of the latter.

In Letters Patent of the United States for cesspools or catch-basins forsewers, granted to me under date of May 16,1905, No. 790,254,

I have shown, described, and claimed a cover for cesspools orcatch-basins which is constructed to obviate the necessity, whichexisted prior to the date of the invention of the said Letters Patent,for cutting away or recessing the edge stone or curbing next which suchcover is located or for employing a recessed cast-iron frame in lieu ofthe edge stone or portion of curbing next adjacent the cover or set intothe said edge stone or portion of curbing. Previously the edge stone orcurbing was cut away or recessed or the recessed cast-iron frame wasemployed in order to permit water which is unable to pass through theusual holes or inlets of the top of the cover to flow over the edge ofthe cover and down into the cesspool or catch-basin. In the inventionwhich is set forth in the said Letters Patent the cover is constructedwith vertical flanges at the side thereof which is placed adjacent theedge stone or curbing, the free edges of the said vertical flanges beingdesigned to make contact with the plain outer face of the edge stone orcurbing and the horizontal flange being omitted between the saidflanges, so that a passage-way is produced through which water may pourinto the cesspool or catch-basin. The described construction enables anedge stone having a lain outer face to be used and obviates the Laborand expense of forming a recess in the edge stone. With the object inView of securin substantially the advantages just men tione inconnection with a cover having a IIO trap formed in the manner which hasbeen explained in connection with Figs. 1 and 2, I extend the said covertransversely toward one side, as shown in the said figures, and shapethe same to fit against the outer face of an edge stone or portion ofcurbing. Instead, however, of forming the cover with vertical flangesadapted to make contact with the outer face of the edge stone or curbingand with an opening between the said flanges for the downfiow of waterdirectly into the cesspool or catch-basin I extend the bottom plate 1 inthe present instance outward to the said side of the cover and provide awall 1 which rises from the outer edge of the said bottom plate and isintended to make contact by its outer surface with the correspondingface of the edge stone or curbing. At the opposite ends of the walls 1other Walls 1 1 rising from the bottom plate 1, extend from the wall 1to the outer circular shell or wall 1 The walls 1 1 1 1 inclose achamber 1 which is open at the top and into which water may flow fromabove, the said wall 1 having a transverse opening 1 through the lowerportion thereof, affording communication between the chambers 1 and 1and through which the contents of the former may flow into the latterand, passing from chamber 1 by way of openings 1 1 1 of the inner wallor shell 1 may discharge into the said pool or catch-basin. At 1 1 and 11 are bridging-flanges and lugs at thetop of the chamber 1 these flangesand lugs being intended to support the foot of an animal or rim of awheel as the latter passes across above the said chamber and prevent thesame from descending into the chamber 1 It will be perceived from theforegoing that in use water may descend either by way of the annularspace around the edge of the removable top 2 directly into the innerchamber 1 or into the outer chamber 1 and thence may pass through theopening 1 into the chamber 1 Figs. 3 and 4 show a modification of theinvention in which the outside chamber 1 is dispensed with, the coverhaving a circular form.

I claim as my invention- 1. In a cesspool or catch-basin, or the like,in combination, a central wall or pipe, an inverted top or cup having adownturned shell or flange to form a water seal for said central wall orpipe, separated projections at the top of said central wall or pipeserving as supports for the said top or cup, and ribs or lugs serving toprevent horizontal movement of the said top or cup.

2. The cover for cesspools or catch-basins for sewers having the passagefor downfiow of water, inner and outer walls around such passage havinga seal-chamber between them, an open-topped side chamber beyond saidouter wall communicating with the sealchamber, and a removable tophaving a depending shell or flange entering the said sealchamber.

3. The cover for cesspools or catch-basins for sewers having the passagefor downflow of water, inner and outer walls around such passage havinga seal-chamber between. them, an open-topped side chamber communicatingwith the sealchamber, and a top having the depending shell or flangeentering the said seal-chamber, with the o ening adjacent the said topfor entrance of water directly into the seal-chamber.

In testimony whereof I afliX my signature in presence of two witnesses.

PAUL HANNAGANa Witnesses:

CHAS. F. RANnALL, EDITH J. ANDERSON.

